Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Comerica, Inc. (NYSE: CMA), where a total of 88,100 contracts have traded so far, representing approximately 8.8 million underlying shares. That amounts to about 603% of CMA's average daily trading volume over the past month of 1.5 million shares. Particularly high volume was seen for the $40 strike put option expiring October 16, 2015, with 21,517 contracts trading so far today, representing ...
Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Comerica, Inc. (NYSE: CMA), where a total of 88,100 contracts have traded so far, representing approximately 8.8 million underlying shares. That amounts to about 603% of CMA's average daily trading volume over the past month of 1.5 million shares. Particularly high volume was seen for the $40 strike put option expiring October 16, 2015, with 21,517 contracts trading so far today, representing ...
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